Is Your Saturn VUE Shifting Erratically?
A faulty Transmission Control Module (TCM) can turn your daily drive into a frustrating and unpredictable experience. If your 2007-2010 Saturn VUE, or another compatible GM vehicle, is suffering from harsh shifting, getting stuck in gear, or has an illuminated check engine light, you’ve likely diagnosed the problem correctly. The TCM is the brain of your automatic transmission, and when it fails, performance and reliability suffer dramatically. This T42 Transmission Control Module, service part 24243901, is the definitive solution to restore your vehicle’s smooth operation and peace of mind.
From the Diagnostic Bay
We recently had a 2009 GMC Sierra towed in, stuck in what the owner called ‘fail-safe’ mode—it wouldn’t shift out of 3rd gear. The dashboard was lit up with a check engine light and a transmission warning. The owner was convinced he was facing a catastrophic transmission failure costing thousands. After connecting our scan tool, we saw the classic P0700 code alongside several solenoid circuit faults. Experience told us this wasn’t an internal transmission problem, but an electronic one. We installed this exact VIN-programmed T42 TCM. After a 20-minute installation and clearing the codes, the truck was shifting flawlessly. The customer drove away with a perfectly running vehicle for a fraction of the cost of a transmission rebuild.
Common Symptoms of a Failing GM T42 TCM
- ✔ Harsh, erratic, or delayed gear shifts that make driving uncomfortable.
- ✔ Vehicle entering “limp mode,” often stuck in 2nd or 3rd gear.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dash.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, P0753, P0758, or other solenoid-related faults are present.
- ✔ Complete failure to upshift or downshift, leading to poor acceleration and fuel economy.
- ✔ The transmission may feel like it’s slipping between gears or disengaging entirely.
- ✔ Intermittent electrical issues that seem to have no other cause.
Your Plug-and-Play Saturn VUE TCM Solution
Don’t let a faulty module keep you off the road. This isn’t just a replacement part; it’s a complete, ready-to-install solution. The biggest hurdle in replacing a modern electronic module is the need for expensive dealership programming. We eliminate that step entirely. By providing your vehicle’s VIN during checkout, we program the module with the latest GM-certified software specific to your vehicle. This ensures that once installed, it communicates seamlessly with your Engine Control Module (ECM) and other vehicle systems. This direct-fit Saturn VUE TCM restores the precise electronic control required for optimal shift points, torque converter lockup, and fuel efficiency.
Simple Installation, Lasting Results
Designed for a straightforward swap, this module can be installed by a DIY mechanic in under 30 minutes. The TCM is typically located in the engine compartment—common spots include next to the battery, on the LH strut tower, or under the air cleaner box, depending on your specific model. Simply disconnect the vehicle’s battery, unbolt the old module, unplug the electrical connectors, and install the new one in its place. Once you reconnect the battery, the new module is ready to go. We recommend using a basic scan tool to clear any stored DTCs after installation. Best of all, there is no core charge, so you don’t have to worry about the hassle and expense of returning your old part.
This module is a direct replacement for a wide range of part numbers, including 24252114, 24234503, 24243901, and more, ensuring broad compatibility across dozens of GM models from Chevrolet, GMC, Buick, Cadillac, Pontiac, and Saturn. Restore the performance and reliability of your vehicle today.
Frequently Asked Questions
What does ‘VIN Programmed’ actually mean?
It means we flash the module with your vehicle’s specific Vehicle Identification Number (VIN) and the latest factory software from General Motors before it ships. This makes the module a true plug-and-play part, as it’s already configured to communicate perfectly with your vehicle’s engine and other systems, eliminating the need for a trip to the dealership for expensive programming.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. In many cases, the problem is the TCM itself. Replacing a faulty module with this new programmed unit is a very common and effective way to resolve a P0700 code and any related specific transmission codes (like for shift solenoids).
Is this part difficult to install myself?
For individuals with basic hand tools and some mechanical experience, this is a very manageable job. The module is typically in an accessible location in the engine bay. The process involves disconnecting the battery, unplugging a few electrical harnesses, and removing a few bolts. Most installations take less than 30 minutes.
Is there a core charge for this part?
No, there is absolutely no core charge. You can keep, recycle, or dispose of your old module without the hassle or expense of shipping it back to us.
How can I be certain my TCM is the problem?
While the symptoms listed are strong indicators, the most definitive way to diagnose a bad TCM is with a professional-grade scan tool. A mechanic can check for communication errors between the TCM and other modules and look for specific internal fault codes within the TCM itself. If communication is lost or internal faults are present, the TCM is almost certainly the culprit.